PVC?????????????????,????,????????????С,??????,??????????,?????????????????????????.?????????????????,????????????????????,????????,?μ?????,??????????????????.
PVC?????????????????????????. PVC?????????????????????.????,???????β???,?????????в????п?????????.
1.????????.???????????????????.
2.????????.?????????,?????????,?????,?????.
3.????????????.?????????????????
4.??·???·??.????????????????
5.???.????PVC??????????????,?????????????????????.
6.??????????.???????????????,???,????????
7.??·????.????PVC???????????·??????·?????????????
8.????.????PVC???????????????,????????
???????
???????PVC??????????Щ?????
????????????????????????????